On February 11-15, I am climbing Katahdin in Winter with a team for the third time. The first year it was around -50 degrees in January so they closed the mountain above Chimney Pond (which there is no way to know until you do the ski in). Last year it was 25 degrees (in March) and 1 member of the team and I attempted the knife's edge. Before even getting to the edge the wind and blown snow made us back off (60+ mph is not unheard of). We then went down and climbed up via the saddle to the peak. This year we are going to go for the Knife's Edge again. We will have rope, harnesses, belay devices, and some pro for the knife's edge. The knife's edge is not a joke.
The 12 mile ski in to Katahdin dragging a pulk uphill to Roaring Brook is a tough first day. The second day is short up to Chimney Pond. Then we usually fool around with some skiing, snow shoeing, etc. The third day will be for the knife's edge and summit. Fourth day is for some skiing and general side trips, and the fifth day is a ski out from Chimney Pond.
We always get the bunkhouses because you will want to be warm at night.